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CN1653521B - 用于音频代码转换中的自适应码本音调滞后计算的方法 - Google Patents

用于音频代码转换中的自适应码本音调滞后计算的方法 Download PDF

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Publication number
CN1653521B
CN1653521B CN038106450A CN03810645A CN1653521B CN 1653521 B CN1653521 B CN 1653521B CN 038106450 A CN038106450 A CN 038106450A CN 03810645 A CN03810645 A CN 03810645A CN 1653521 B CN1653521 B CN 1653521B
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subframe
tone
input
sluggish
module
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Chinese (zh)
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CN1653521A (zh
Inventor
M·A·加布里
J·W·王
S·乔吉
M·伊布拉西姆
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Di Lee Sim For Benefit Of Creditors Ltd
Di Lee Sim Network Inc
Dilithium Networks Inc
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Dilithium Networks Inc
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

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  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CN038106450A 2002-03-12 2003-03-12 用于音频代码转换中的自适应码本音调滞后计算的方法 Expired - Fee Related CN1653521B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US36440302P 2002-03-12 2002-03-12
US60/364,403 2002-03-12
PCT/US2003/007901 WO2003079330A1 (fr) 2002-03-12 2003-03-12 Procede de calcul du retard du pas de livres de codes adaptatifs dans des transcodeurs audio

Publications (2)

Publication Number Publication Date
CN1653521A CN1653521A (zh) 2005-08-10
CN1653521B true CN1653521B (zh) 2010-05-26

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CN038106450A Expired - Fee Related CN1653521B (zh) 2002-03-12 2003-03-12 用于音频代码转换中的自适应码本音调滞后计算的方法

Country Status (7)

Country Link
US (2) US7260524B2 (fr)
EP (1) EP1483758A4 (fr)
JP (1) JP2005520206A (fr)
KR (1) KR20040104508A (fr)
CN (1) CN1653521B (fr)
AU (1) AU2003214182A1 (fr)
WO (1) WO2003079330A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9263051B2 (en) 2009-01-06 2016-02-16 Skype Speech coding by quantizing with random-noise signal
US9530423B2 (en) 2009-01-06 2016-12-27 Skype Speech encoding by determining a quantization gain based on inverse of a pitch correlation

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EP1483758A4 (fr) * 2002-03-12 2007-04-11 Dilithium Networks Pty Ltd Procede de calcul du retard du pas de livres de codes adaptatifs dans des transcodeurs audio
KR100546758B1 (ko) * 2003-06-30 2006-01-26 한국전자통신연구원 음성의 상호부호화시 전송률 결정 장치 및 방법
US7433815B2 (en) * 2003-09-10 2008-10-07 Dilithium Networks Pty Ltd. Method and apparatus for voice transcoding between variable rate coders
US7519532B2 (en) * 2003-09-29 2009-04-14 Texas Instruments Incorporated Transcoding EVRC to G.729ab
US9058812B2 (en) * 2005-07-27 2015-06-16 Google Technology Holdings LLC Method and system for coding an information signal using pitch delay contour adjustment
US7602745B2 (en) * 2005-12-05 2009-10-13 Intel Corporation Multiple input, multiple output wireless communication system, associated methods and data structures
JP3981399B1 (ja) * 2006-03-10 2007-09-26 松下電器産業株式会社 固定符号帳探索装置および固定符号帳探索方法
KR100900438B1 (ko) * 2006-04-25 2009-06-01 삼성전자주식회사 음성 패킷 복구 장치 및 방법
US8218529B2 (en) * 2006-07-07 2012-07-10 Avaya Canada Corp. Device for and method of terminating a VoIP call
EP1903559A1 (fr) * 2006-09-20 2008-03-26 Deutsche Thomson-Brandt Gmbh Procédé et dispositif de transcodage de signaux audio
GB2466669B (en) * 2009-01-06 2013-03-06 Skype Speech coding
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
GB2466670B (en) 2009-01-06 2012-11-14 Skype Speech encoding
GB2466672B (en) 2009-01-06 2013-03-13 Skype Speech coding
US8243610B2 (en) * 2009-04-21 2012-08-14 Futurewei Technologies, Inc. System and method for precoding codebook adaptation with low feedback overhead
EP2249334A1 (fr) 2009-05-08 2010-11-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Transcodeur de format audio
US8452606B2 (en) 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates
US8521541B2 (en) 2010-11-02 2013-08-27 Google Inc. Adaptive audio transcoding
CN104243734B (zh) * 2013-06-18 2019-03-01 深圳市共进电子股份有限公司 音频处理系统和方法
MY177559A (en) 2013-06-21 2020-09-18 Fraunhofer Ges Forschung Apparatus and method for improved concealment of the adaptive codebook in acelp-like concealment employing improved pitch lag estimation
BR112015031606B1 (pt) 2013-06-21 2021-12-14 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Aparelho e método para desvanecimento de sinal aperfeiçoado em diferentes domínios durante ocultação de erros
EP3011555B1 (fr) 2013-06-21 2018-03-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Reconstructrion d'une trame vocale
EP2980799A1 (fr) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Appareil et procédé de traitement d'un signal audio à l'aide d'un post-filtre harmonique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08146997A (ja) 1994-11-21 1996-06-07 Hitachi Ltd 符号変換装置および符号変換システム
US5995923A (en) * 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders
US6115687A (en) * 1996-11-11 2000-09-05 Matsushita Electric Industrial Co., Ltd. Sound reproducing speed converter

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US6260009B1 (en) * 1999-02-12 2001-07-10 Qualcomm Incorporated CELP-based to CELP-based vocoder packet translation
WO2001020595A1 (fr) * 1999-09-14 2001-03-22 Fujitsu Limited Codeur/decodeur vocal
US6760698B2 (en) * 2000-09-15 2004-07-06 Mindspeed Technologies Inc. System for coding speech information using an adaptive codebook with enhanced variable resolution scheme
JP2002202799A (ja) * 2000-10-30 2002-07-19 Fujitsu Ltd 音声符号変換装置
JP2002229599A (ja) 2001-02-02 2002-08-16 Nec Corp 音声符号列の変換装置および変換方法
EP1483758A4 (fr) * 2002-03-12 2007-04-11 Dilithium Networks Pty Ltd Procede de calcul du retard du pas de livres de codes adaptatifs dans des transcodeurs audio
JP2004222009A (ja) 2003-01-16 2004-08-05 Nec Corp 異種網接続ゲートウェイおよび異種網間通信課金システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08146997A (ja) 1994-11-21 1996-06-07 Hitachi Ltd 符号変換装置および符号変換システム
US6115687A (en) * 1996-11-11 2000-09-05 Matsushita Electric Industrial Co., Ltd. Sound reproducing speed converter
US5995923A (en) * 1997-06-26 1999-11-30 Nortel Networks Corporation Method and apparatus for improving the voice quality of tandemed vocoders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9263051B2 (en) 2009-01-06 2016-02-16 Skype Speech coding by quantizing with random-noise signal
US9530423B2 (en) 2009-01-06 2016-12-27 Skype Speech encoding by determining a quantization gain based on inverse of a pitch correlation

Also Published As

Publication number Publication date
AU2003214182A1 (en) 2003-09-29
JP2005520206A (ja) 2005-07-07
EP1483758A1 (fr) 2004-12-08
US7260524B2 (en) 2007-08-21
WO2003079330A1 (fr) 2003-09-25
US20080189101A1 (en) 2008-08-07
KR20040104508A (ko) 2004-12-10
CN1653521A (zh) 2005-08-10
US20040002855A1 (en) 2004-01-01
US7996217B2 (en) 2011-08-09
EP1483758A4 (fr) 2007-04-11

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